org.openhab.ui.habmin 2.0.0.SNAPSHOT-0.1.4.jar can be a little difficult to type. Terminal allows us to use auto completion to avoid that :
just type the beginning, i.e.: mv ../Downloads/org.op and press the tab key. Terminal will complete the name for you.

Launching openHAB for the second time

We are going to launch openHAB for the second time, in order to check that our install is successful.

Without closing the terminal, open your favorite web browser and type the following url: http://localhost:8011, you should see the openHAB welcome screen, with a new UI : HABMIN.

Which browser should I use ?

Safari is supported by openHAB, but the fact is the browser used by the openHAB developer community - and by the owner of the ZWave plugin - is Google Chrome.
I recommend then Google Chrome, as openHAB 2 is in a beta phase.